Merge "Add MCL_ONFAULT to mlockall" am: ccb9960b am: 179c81f7

    kill_timeout_ms =

        (unsigned long)property_get_int32("ro.lmk.kill_timeout_ms", 0);

    if (mlockall(MCL_CURRENT | MCL_FUTURE))

    // MCL_ONFAULT pins pages as they fault instead of loading

    // everything immediately all at once. (Which would be bad,

    // because as of this writing, we have a lot of mapped pages we

    // never use.) Old kernels will see MCL_ONFAULT and fail with

    // EINVAL; we ignore this failure.

    //

    // N.B. read the man page for mlockall. MCL_CURRENT | MCL_ONFAULT

    // pins ⊆ MCL_CURRENT, converging to just MCL_CURRENT as we fault

    // in pages.

    if (mlockall(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT) && errno != EINVAL)

        ALOGW("mlockall failed: errno=%d", errno);

    sched_setscheduler(0, SCHED_FIFO, &param);